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Abstract

An improvement is described which provides self centering for the clamp spring disclosed in [*]. A resilient 0-ring is retained in a groove around the clamp washer to center the inner diameter of the dished clamp spring. This holds the clamp spring centered when its inner diameter reduces upon tightening the clamp. Fig. 1 shows the disk clamp in its free state prior to clamping. The clamp washer is held on a disk hub by a clamp screw. A resilient 0-ring is retained in a groove around the clamp washer. A small interference fit is provided with an inner diameter of the dished clamp spring to give concentric location prior to clamping. Fig. 2 shows the disk clamp compressed by the clamp screw.

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United States

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English (United States)

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Self-Centering Disk Clamp

An improvement is described which provides self centering for the clamp spring
disclosed in [*]. A resilient 0-ring is retained in a groove around the clamp
washer to center the inner diameter of the dished clamp spring. This holds the
clamp spring centered when its inner diameter reduces upon tightening the
clamp. Fig. 1 shows the disk clamp in its free state prior to clamping. The clamp
washer is held on a disk hub by a clamp screw. A resilient 0-ring is retained in a
groove around the clamp washer. A small interference fit is provided with an
inner diameter of the dished clamp spring to give concentric location prior to
clamping. Fig. 2 shows the disk clamp compressed by the clamp screw. When
the clamp screw is tightened, the 0-ring is compressed and provides sufficient
resilience to allow for the reduction of the inner diameter of the dished clamp
spring and gives concentric location after clamping. Reference [*] M. H. Bosier
and F. E. Castle, "Magnetic Disk Assembly," IBM Technical Disclosure Bulletin
22, 5461 (May 1980).